Fully Assembled & Ready to Race On-Road R/C Car Serpent Medius X20 1/10 Ready-To-Run 4WD Electric On-Road Touring Car. Ideal for both beginners entering the racing scene and experienced racers seeking a hassle-free option, this Medius X20 features a fully factory-assembled and ...Fully Assembled & Ready to Race On-Road R/C Car Serpent Medius X20 1/10 Ready-To-Run 4WD Electric On-Road Touring Car. Ideal for both beginners entering the racing scene and experienced racers seeking a hassle-free option, this Medius X20 features a fully factory-assembled and race-tuned chassis that can be upgraded down the road and compete with the top tier platforms on the track! The Medius X20 RTR features a super narrow, symmetrical and durable carbon chassis and top deck with optimized flex design, molded front and rear brackets, with belt tension adjustments, a front nylon lightweight spool with screw mounted front gear pully, smooth low friction fine pitch belts combined with optimized nylon pulley and a very compact differential with steel gears and axles to enhance durability and provide a smooth drive feel! To power this Medius X20, team Serpent teamed up with Dragon RC to provide highly capable and race worthy electronics for the Medius X20 to excel on the track stra...